Fix uninitialized memory. Spotted by valgrind

git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1788 fd59a12c-fef9-0310-b244-a6a79926bd2f

exec/totemip.c

@@ -406,6 +406,7 @@ int totemip_iface_check(struct totem_ip_address *bindnet,
         memset(&nladdr, 0, sizeof(nladdr));
         nladdr.nl_family = AF_NETLINK;
 
+        memset(&req, 0, sizeof(req));
         req.nlh.nlmsg_len = sizeof(req);
         req.nlh.nlmsg_type = RTM_GETADDR;
         req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;